Geometry Vocabulary

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Across
  1. 3. A polygon with eight sides
  2. 8. A triangle with two congruent sides
  3. 10. A quadrilateral with exactly 1 pair of parallel sides
  4. 12. Two angles whose sum is 90 degrees
  5. 13. A quadrilateral with 2 pairs of parallel sides
  6. 15. An angle that measures 180 degrees
  7. 18. Adjacent angles that form a line
  8. 19. A geometric figure made with only a compass and straightedge
  9. 20. A pair of opposite angles formed by intersecting lines
  10. 21. A line, segment, or ray that intersects a segment at its midpoint forming a right angle
  11. 23. A parallelogram with four right angles
  12. 25. If a=a, then a=a
  13. 26. A point on a line segment equidistant from each endpoint
  14. 27. An angle that measures between 0 and 90 degrees
  15. 29. A polygon with six sides
  16. 30. A polygon with twelve sides
  17. 32. Coplanar lines that do not intersect
Down
  1. 1. A parallelogram with four congruent sides and four right angles
  2. 2. A parallelogram with four congruent sides
  3. 4. An angle that measures between 0 and 180 degrees
  4. 5. If a=b and b=c, then a=c
  5. 6. Points that lie on the same line
  6. 7. Lines, segments, or rays that intersect forming a right angle
  7. 9. A triangle with all sides congruent
  8. 11. If a=b, then b=a
  9. 14. Angles that share a side
  10. 16. Two angles whose sum is 180 degrees
  11. 17. A ray that divides an angle into two congruent angles
  12. 22. A polygon with five sides
  13. 24. A polygon with ten sides
  14. 28. Exactly equal in size and shape
  15. 31. A closed 2-dimensional shape formed with line segments